package com.imooc.sell.controller;

import com.imooc.sell.conf.ProjectUrlConfig;
import com.imooc.sell.conf.WeChatMpConfig;
import com.imooc.sell.enums.ResultEnum;
import com.imooc.sell.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.client.RestTemplate;

import java.net.URLEncoder;

@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {

    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private WxMpService wxOpenService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @RequestMapping("auth")
    public void auth(@RequestParam(value = "code")String code){
        log.info("进入auth方法");
        log.info("code={}",code);

        String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=wxc3ef12f88cbd5d91&secret=67e3edb843a132edfe1481fffbe25602&code="+code+"&grant_type=authorization_code";
        RestTemplate restTemplate = new RestTemplate();
        String result = restTemplate.getForObject(url, String.class);
        log.info("result={}",result);
    }

    @RequestMapping("authorize")
    public String authorize(@RequestParam(value = "returnUrl")String returnUrl){
        String url = projectUrlConfig.getWechatMpAuthorize()+"/sell/wechat/userInfo";
        String redirect_url = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAuth2Scope.SNSAPI_USERINFO, URLEncoder.encode(returnUrl));

        return "redirect:"+redirect_url;
    }

    @RequestMapping("userInfo")
    public String userInfo(@RequestParam("code")String code,
                         @RequestParam("state")String state){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
             wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("【微信网页授权】={}",e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }

        String openId = wxMpOAuth2AccessToken.getOpenId();
        log.info("openId={}",openId);

        return "redirect:"+state+"?openid="+openId;
    }

    @RequestMapping("qrAuthorize")
    public String qrAuthorize(@RequestParam(value = "returnUrl")String returnUrl){
        String url = projectUrlConfig.getWechatOpenAuthorize()+"/sell/wechat/qrUserInfo";
        String redirect_url = wxMpService.buildQrConnectUrl(url, WxConsts.QrConnectScope.SNSAPI_LOGIN, URLEncoder.encode(returnUrl));
        return "redirect:"+redirect_url;
    }

    @RequestMapping("qrUserInfo")
    public String qrUserInfo(@RequestParam("code")String code,
                           @RequestParam("state")String state){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxOpenService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("【微信网页授权】={}",e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }

        String openId = wxMpOAuth2AccessToken.getOpenId();
        log.info("openId={}",openId);

        return "redirect:"+state+"?openid="+openId;
    }

}
